Scaffolding post connection rosette with hollow embossments of reduced nominal thickness, and scaffolding subassembly

ABSTRACT

The invention relates to a connecting rosette (10) for a scaffolding post (40), comprising a plurality of through recesses (16, 18) for the passage of coupling parts of scaffolding components (42) to be detachably connected to the connecting rosette (10), which are arranged at a distance from one another in the circumferential direction of the connecting rosette (10). The connection rosette has an upper and a lower side surface (12a, 12b), which are designed plane-parallel and define a nominal thickness DN of the connection rosette. The connection rosette is provided with several hollow embossments (24) with projections (26) formed on only one of the two side faces (12a, 12b) and corresponding recesses (28) formed on the respective other side face (12a, 12b). The hollow embossments (24) are each arranged at a distance from the through recesses (16, 18) on a radial segment (30) of the connecting rosette (10), which extends in the radial direction from the inner edge (32) to the outer edge (22) of the connecting rosette (10) and by which one of the through recesses (16, 18) is bounded on each side. The invention further relates to a framework assembly (100).

The invention relates to a connecting rosette for scaffolding posts, such as are used in system scaffolds as nodes for coupling further system components, and to a scaffolding assembly.

Scaffolding is used in the construction sector as a working platform, to attach a concrete formwork or also as a protective device. System scaffolds, which include the so-called frame and modular scaffolds, are constructed from scaffold components of a—mostly manufacturer-specific—scaffold system. The system scaffolds have vertically (plumb) arranged scaffolding posts which are provided with numerous connection or node points at which other system scaffold components, for example horizontal ledgers, diagonal braces and (scaffold) brackets, can be attached and the scaffolding posts can be connected to each other. The junctions are usually formed by a perforated disc known as a connecting rosette. In view of the required load-bearing capacity, the connecting rosettes are usually made of metal and are welded or otherwise fastened to the scaffold standards. The cumulative mass of the connecting rosettes of a scaffolding post is a considerable disadvantage from the point of view of costs in production and transport and also with regard to the manageability of the scaffold legs.

It is therefore the object of the invention to provide a connection rosette that can be manufactured with a lower overall material input and at a lower cost. Furthermore, a framework assembly with a framework assembly is to be specified.

The object relating to the connecting rosette is solved by a connecting rosette having the features indicated in claim 1. The scaffolding assembly according to the invention is given in claim 11. Preferred further embodiments of the invention are the subject of the description and the subclaims.

The perforated disc or connection rosette according to the invention is provided for mounting on a scaffolding post and serves to connect at least one further (system) scaffold component, for example a horizontal ledger, a so-called diagonal, in particular a vertical diagonal, a bracket or other manufacturer-specific scaffold components.

The through recesses of the connecting rosette allow the passage of coupling parts of scaffolding components to be detachably connected to the connecting rosette, which are arranged at a distance from each other in the circumferential direction of the connecting rosette. According to the invention, the connecting rosette has an upper and a lower side surface which are designed to be plane-parallel. The connecting rosette is provided with several hollow embossments with (hollow embossing) elevations formed on only one of the two side surfaces and corresponding (hollow embossing) depressions in the respective other side surface. The hollow embossments are each arranged on a radial segment of the connecting rosette, which extends in the radial direction from the inner edge to the outer edge of the connecting rosette and by which one of the through recesses is bounded on both sides, and wherein the hollow embossments are each arranged at a distance from the through recesses. Due to the hollow embossments, the connection rosette only has a functional thickness at defined points that is greater than the nominal thickness of the connection rosette, i.e. the slice thickness of the connection rosette. This means that the connection rosette can be made thinner overall, i.e. with a smaller nominal thickness, than has been possible up to now, while still retaining sufficient load-bearing capacity. The resulting reduction in the mass of the connecting rosette offers advantages in terms of production technology and costs. Due to the local functional thickening or increase in height of the connecting rosette achieved with the hollow embossing, a defined support surface for a scaffolding component to be connected to the connecting rosette can be realized. This ensures a secure and play-free or essentially play-free fit of the scaffolding component on the connecting rosette. On the other hand, undesired incorrect or local overstressing of the connecting rosette can be reliably counteracted.

In addition, existing scaffolding components that are designed for attachment to connection rosettes with a larger uniform nominal thickness can be connected to the connection rosette according to the invention without further ado, without them having excessive play or being able to tilt.

The nominal thickness is considered to be the uniform material thickness of the connecting rosette, which the connecting rosette has in the areas without hollow embossing.

Due to the plane-parallel upper and lower side surfaces, the connection rosette can be cut or punched out of a panel blank at low cost. All hollow embossings can be introduced into the material of the connection rosette at the same time or within the scope of a progressive bonding process without significant technical effort. This means that the connecting rosette can be mass-produced at low cost. The hollow embossments are all spaced apart from the through recesses and are each arranged on a radial segment of the connection rosette, which extends in the radial direction from the inner edge to the outer edge of the connection rosette and by which one of the opening recesses is bounded on both sides. The hollow embossments are thus completely surrounded by the flat side surfaces of the connection rosette. In this way, the elevations can be realized as functional contact surfaces for the scaffolding components to be connected to the connecting rosette with a particularly large load-bearing capacity. Unwanted shearing off of the elevations or undesired deformation of the elevations under the often rough conditions of use during transport and operation can thus be counteracted.

According to the invention, each of the aforementioned rosette segments has only one hollow embossing. Thus, on the one hand, an excessive structural weakening of the connecting rosette can be avoided.

The elevations of the connecting rosette defined by the hollow embossments serve as support surfaces for the scaffolding components to be connected to the connecting rosette. To simplify assembly, the projections preferably do not have sharp edges but a rounded shape. In this way, undesired canting of the scaffolding components to be connected or disconnected from the connecting rosette can be reliably counteracted. This is also advantageous from the point of view of occupational safety.

According to a preferred embodiment of the invention, all hollow embossments are uniformly spaced from the central axis of the connecting rosette. In this way, an advantageous axis-symmetrical loading of the connection rosette can be achieved at the support points formed by the embossments.

According to the invention, the elevations can all correspond to each other in their shape and/or in their dimensions. On the one hand, this offers advantages in terms of production technology. On the other hand, handling errors can be avoided.

Particularly preferably, all elevations of the hollow embossments have a circular cross-sectional shape. This cross-sectional shape enables a particularly load-stable design of the elevations and at the same time only a slight weakening of the material of the connection rosette.

The elevations preferably have a height h that corresponds to a maximum of half the nominal thickness D_(N) of the connection rosette. This allows the functional thickness of the connection rosette to be increased to at least 1.5 times the nominal thickness of the connection rosette.

The through recesses can basically have a uniform shape and size, or they can differ at least partially in shape and size for the possible connection of different scaffolding components. For example, the connection rosette can have first and second through recesses, whereby the first through recesses are larger than the second through recesses and, in contrast to the second through recesses, are open towards a central recess of the connection rosette. The first through recesses are particularly suitable for the connection of horizontal bolts. The smaller second through recesses are particularly suitable for connecting diagonals, for example vertical diagonals. The second through recesses can in particular have a circular shape.

The scaffolding assembly according to the invention comprises a scaffolding post with a connecting rosette explained above and a scaffold component which is detachably fastened or coupled to the connecting rosette. The scaffolding component has either one or more positioning pins, wherein according to a first alternative embodiment each positioning pin engages in a recess of a hollow embossment of the connecting rosette.

According to a second alternative embodiment, the scaffolding component (in its mounted state on the connecting rosette) is laterally limited in its possible pivoting relative to the connecting rosette by at least one of the elevations of the connecting rosette. By means of such a pivoting or swivelling stop, a levering off of the connecting head of the scaffolding component from the scaffolding component, which is hooked into one of the through recesses or pinned via one of the through recesses, colloquially referred to as stalling, can be avoided. This is advantageous for the longevity of the scaffolding component as well as the connection rosette.

The scaffolding component can be designed as a diagonal, preferably vertical diagonal, which has at one end a fork head with a receiving gap for connection rosettes with a nominal thickness which is greater than the nominal thickness of the connection rosette and which, in its detachably mounted state on the connection rosette, engages over the connection rosette on both sides in the axial direction and can be secured to the connection rosette via a locking or securing element which engages through one of the through recesses of the connection rosette.

The scaffolding component can alternatively be a horizontal latch which has a coupling hook at one end which engages in one of the through recesses of the connecting rosette. The coupling hook may be associated with a securing wedge or the like. According to the invention, each positioning pin of the bolt head may be dimensioned in its length such that it is capable of transmitting normal forces from the horizontal bolt to the connecting rosette. In other words, each positioning pin of the locking head can be longer than the depth of the recess of the corresponding hollow embossment of the connecting rosette.

Further advantages of the invention can be seen in the description and the drawing. The embodiments shown and described are not to be understood as an exhaustive list, but rather have an exemplary character for the description of the invention.

Shown in the drawing:

FIG. 1 a connection rosette with four first through recesses and four second through recesses, which are arranged alternately in the circumferential direction of the connection rosette and with hollow embossments for local thickening of the connection rosette for connecting scaffolding components with as little play as possible, in a plan view;

FIG. 2 the connection rosette from FIG. 1 in a perspective view;

FIG. 3 perspective view of the connection rosette according to FIG. 1 showing the elevations of the hollow embossments on the underside;

FIG. 4 the connection rosette according to FIG. 1 in a side view;

FIG. 5 another connection rosette with hollow embossments, which is designed in the sense of a ¾-rosette and has three first and two second through recesses for the connection of different scaffolding components, in a perspective view

FIG. 6 another connection rosette with hollow embossments and five first through recesses and only two second through recesses, in a perspective view;

FIG. 7 another connecting rosette with hollow embossments and only six first through recesses, in a perspective view on its upper side;

FIG. 8 the connection rosette according to FIG. 7 in a perspective view on its underside;

FIG. 9 a first scaffolding assembly with a scaffolding post provided with a connecting rosette according to FIG. 1 and with a fork head of a scaffold component designed as a vertical diagonal connected to the connecting rosette, in a sectional perspective view;

FIG. 10 the scaffolding assembly according to FIG. 9 in another perspective view;

FIG. 11 a detailed section of the framework assembly according to FIG. 10 showing the positioning pin engaging in the recess of a hollow embossment;

FIG. 12 the scaffolding assembly according to FIG. 10, in a side view;

FIG. 13 the clevis of the scaffold component of the scaffolding assembly according to FIG. 12 in a frontal view; and

FIG. 14 a second scaffolding assembly with a scaffolding post provided with a connecting rosette according to FIG. 1 and with a latch head of a scaffold component designed as a horizontal latch connected to the connecting rosette, in a sectional sectional view.

In FIGS. 1 to 4, a perforated disc or connecting rosette 10 for a scaffolding post, as used in so-called modular scaffolds, is shown. The connecting rosette 10 can be welded to the scaffold pole to be provided with it or can be fastened to the scaffold pole in another suitable way. Here, the connecting rosette 10 is closed in the form of a ring and comprises an upper side surface 12 a and a lower side surface which is not visible in FIG. 1 for reasons of illustration and which are designed to be plane-parallel to one another. A central recess 14 (=scaffolding post recess) serves to accommodate the scaffolding post (not shown). The connection rosette 10 comprises various connection positions A for further scaffolding components. Each connection position A comprises a first through recess 16 or a second through recess 18. The through recesses 16, 18 are arranged at a distance from each other in the circumferential direction of the connection rosette 10. The first and second through recesses 16, 18 can each be arranged alternately on the connection rosette 10 in the circumferential direction as shown in FIG. 1.

The first through recesses 16 are larger than the second through recesses 18 and are open towards the central recess 14 of the connection rosette 10. The first through recesses 16 are primarily used for the detachable connection of scaffolding components in the form of horizontal ledgers. Such scaffolding components usually have coupling parts in the form of hooks, in particular with a securing wedge, which can be hooked into the first through recesses 16. The second recesses 18 are circular and serve to connect scaffolding components in the form of diagonals, in particular so-called vertical diagonals. The second through recesses 18 can each be assigned a radially inwardly pointing indentation 20 of the outer edge 22 of the connection rosette 10. These scaffolding components are usually secured or pinned to the connecting rosette 10 with a securing bolt.

The connection rosette 10 has a small nominal thickness so that it can be provided with a smaller amount of material and with a reduced mass. Existing scaffolding components of manufacturer-specific scaffolding systems available on the market are designed for connection to connection rosettes with a considerably larger nominal thickness in comparison. However, the connection rosette 10 is compatible with such scaffolding components, i.e. it enables such scaffolding components to be seated on the connection rosette 10 with essentially no play, irrespective of their smaller nominal thickness. For this purpose, the connection rosette 10 is provided with several individual hollow embossments 24. The hollow embossments 24 have projections 26, all of which are formed on only one of the two side surfaces 12 of the connecting rosette 10 (FIGS. 3 and 4). The depressions 28 of the hollow embossments 24 corresponding to the elevations 26 are formed on the respective other side surface 12 a, in this case the upper side surface 12 a, as can be seen clearly in FIG. 2. The hollow embossments 24 are each arranged at a distance from the through recesses 16, 18 on a radial segment 30 of the connecting rosette 10, which extends in a (strictly) radial direction from the inner circumference or inner edge 32 of the connecting rosette 10 to its outer edge 22. A radial segment 30 is thus such a segment of the connecting rosette which is laterally limited in the circumferential direction on both sides by a local radius with respect to the central axis Z of the connecting rosette 10. Each of the radial segments 30 delimits one of the through recesses 16, 18 of the connecting rosette 10 on both sides in the circumferential direction. Each of these radial segments 30 preferably has only one hollow embossment 24. In this way, an unnecessary weakening of the material of the connection rosette 10 by the hollow embossings 24 can be avoided. Moreover, no more hollow embossings are functionally required. According to FIG. 1, all hollow embossments 24 of the connection rosette 10 are uniformly spaced from the central axis Z of the connection rosette 10. The hollow embossments 24 are thus all arranged on a circular line 34 around the central axis Z of the connection rosette 10. The second through recesses 18 are arranged completely within the circular line 34 in the radial direction.

According to the perspective view of the connection rosette 10 shown in FIG. 3, the elevations 26 of all hollow embossments 24 have a circular cross-sectional shape.

Due to the circumferential connection of the projections to the rest of the connection rosette, they are reliably secured against undesired shearing or tearing off.

In FIG. 4, the two plane-parallel side surfaces 12 a, 12 b of the connection rosette 10 are clearly visible. The two side surfaces 12 a, 12 b define the nominal thickness D_(N) of the connecting rosette 10, which is in any case less than 7.1 millimetres, in particular approximately 6 millimetres. Each projection 26 of the hollow embossments 24 has a height h, which preferably corresponds to a maximum of half the nominal thickness D_(N) of the connecting rosette 10. The protrusions 26 of the hollow embossments 24 all have a uniform outer diameter 36. The height of the nominal thickness D_(N) and the height h of the protrusions 26 together form a functional thickness DF of the connection rosette 10.

The connection rosette 10 does not have to have full connection possibilities for scaffolding components. As shown in FIG. 5, the connection rosette 10 can also only allow connection of scaffolding components via an arc segment 38 of less than 360°. In this case, too, the connection rosette 10 is preferably designed to be annularly closed in order to ensure, on the one hand, reliable fastening of the connection rosette 10 to a scaffold upright and, at the same time, a large load-bearing capacity of the connection rosette 10. The hollow embossings 24 are also arranged here on a circular line (cf. FIG. 1) in a ring around the axis Z and the recess 14.

The embodiment of the connection rosette 10 shown in FIG. 6 has a total of five first and two second through recesses 16, 18 for the connection of further scaffolding components. This design of the connection rosette 10 allows the connection of scaffolding components at a relative connection angle α with α<90°, here with α=60°, and at a further, smaller relative connection angle with β<60°, here approximately 30°.

FIG. 7 shows another connection rosette 10 with hollow embossments 24, which has exclusively first through recesses 16 for the connection of scaffolding components in the form of latches. The connection rosette 10 comprises a total of 6 such first through recesses 16, which are regularly spaced from one another around the central axis Z.

The connection rosettes 10 shown in FIGS. 6 and 7 allow, in addition to a classical right-angled connection of scaffolding standards, i.e. an orthogonal ground plan structure of the scaffolding, a polygonal scaffolding structure deviating from this, by which the scaffolding can be adapted in a simple manner to curved ground plans of buildings etc. The connecting rosette shown in FIG. 6 can be used to connect two diagonal braces in each case in order to couple a scaffold pole provided with the connecting rosette 10 to another scaffold pole or to mechanically fasten the latter to a building wall or the like.

FIGS. 9 and 10 show a scaffolding assembly 100 with a diagonal connection. The scaffolding assembly comprises a scaffolding post 40 with a connection rosette 10 as shown in FIG. 1 and with a scaffold component 42 shown partially only schematised with a broken line, which is detachably attached to the connection rosette 10. The scaffolding stem 40 is designed as a hollow profile in a manner known per se and has a circular cross-sectional shape. It is understood that the scaffolding post 40 may also have a cross-sectional shape deviating therefrom. The scaffolding stem 40 passes through the central recess 14 of the connecting rosette 10. The longitudinal axis L of the scaffolding stem 40 and the central axis Z of the connecting rosette 10 coincide. The connecting rosette 10 is welded to the scaffold upright 40, but can also be attached to the scaffold upright 40 in another suitable manner. It should be noted that the side surface 12 a of the connecting rosette 10 provided with the indentations 28 of the hollow embossments 24 faces upwards (in the plumb direction), while the side surface 12 b of the connecting rosette 10 provided with the elevations 26 faces downwards. This simplifies the assembly of scaffolding components to and the disassembly of scaffolding components from the connecting rosette 10. In addition, the load on the protrusions 26 of the hollow embossments 24 is significantly lower than if they were to point vertically upwards from the connecting rosette 10.

According to FIG. 9, the scaffolding component 42 is designed as a vertical diagonal with a hollow profile 44 and a clevis 46 attached to the hollow profile 44. The clevis 46 is arranged in its predetermined mounting position on the connecting rosette 10 of the scaffold upright 40. The clevis 46 comprises an upper and a lower claw 48 a, 48 b, between which a receiving gap 50 for the connecting rosette 10 is formed. In the assembly position of the scaffolding component 42 shown, its fork head 46 engages over the connecting rosette 10 on both sides in the axial direction. The connecting rosette 10 is thus arranged in sections in the receiving gap 50 of the fork head 46. Both claws 48 a, 48 b of the fork head 46 have contact surfaces 52 for the scaffolding stem 40 at their free end. The contact surfaces 52 preferably have a radius of curvature (not indicated in the drawing) corresponding to the radius of the scaffold tower 40 in order to provide the largest possible support for the fork head 44 on the scaffold tower 44 in the radial direction. In FIG. 10, the hollow profile 44 of the scaffolding component 42 is not shown for illustration reasons.

Note that in FIGS. 9 and 10, a securing pin which engages through the clevis 46 and one of the second through recesses 18 of the connecting rosette 10 to secure the framework component 42 in its mounted position on the connecting rosette 10 is not shown.

In the embodiment shown, the fork head 46 has two positioning pins 54 on its upper claw 48 a. These positioning pins 54 are each arranged laterally on the upper claw 48 a of the fork head and can be welded to it, for example. The positioning pins 54 each engage in a recess 28 of one of the hollow embossments 24 of the connection rosette when the fork head 46 is arranged in its predetermined assembly position on the connection rosette 10. On the one hand, this makes it easier to position the clevis 46 of the framework component 42 in its predetermined assembly position on the connecting rosette 10. In addition, the engagement of the positioning pins 54 in the recesses of the hollow embossments 24 enables the fork head 46 to be seated without play or substantially without play in a direction parallel to the upper side surface 12 a of the connection rosette 10. It should be noted that the positioning pins are in any case shorter than the recesses 28 of the hollow embossments 24 of the connecting rosette 10, so that these are not subjected to pressure in the axial direction.

FIG. 11 shows the coupling point of the clevis 46 to the connecting rosette 10 of FIG. 10. The positioning pins 54 can be partially embedded in the material of the fork head.

FIG. 12 shows a side view of the scaffolding assembly 100 with diagonal connection according to FIG. 10. The fork head 46 engages with its lower claw 48 b over two of the elevations 26 of the hollow embossments 24 of the connection rosette 10 in an axial direction. These protrusions 26 protrude from the connection rosette 10 in an axial direction onto the lower claw 48 b of the clevis 46. The functional thickness DF of the connecting rosette 10 is only slightly smaller than the gap width b of the receiving gap 50. As a result, the clevis 46 is arranged in its predetermined mounting position on the connecting rosette 10 with only a small axial clearance. The axial play S of the fork head (clevis head) 46 of the framework component 42 mounted on the connecting rosette relative to the connecting rosette 10 corresponds to the difference between the gap width b and the functional thickness DF of the connecting rosette 10, cf. FIG. 4. The depth of engagement of the positioning pins 54 in the recesses 28 of the respective hollow embossments 24 of the connecting rosette 10 is necessarily (minimally) selected to be smaller than the axial play S in order to be able to mount and dismount the fork head 46 on the connecting rosette 10 in a simple manner. A locking or securing element 56, shown in FIG. 12 with a dotted line, serves to secure the fork head 10 in its predetermined assembly position on the connecting rosette 10. The securing element 56 is designed here as a locking pin and engages through the fork head 46 and one of the second through recesses 18 of the connecting rosette 10. The securing element 56 absorbs normal forces and shear forces of the scaffolding component 42 acting on the connecting rosette 10. Unwanted shearing or deformation of the positioning pins 54 of the fork head 46 can thus be reliably counteracted.

In FIG. 13, the clevis 46 of the scaffold component 42 of the scaffolding assembly 100 with diagonal connection is shown in a frontal view. The fork head 46 comprises the upper and lower claws 48 a, 48 b, between which the receiving gap 50 for the connection rosette 10 is filleted. Both claws 48 a, 48 b of the fork head 46 have the contact surfaces 52 for the scaffold stem at their free end. In the embodiment shown, the fork head 46 has two positioning pins 54 on its upper claw 48 a. These positioning pins 54 are each arranged laterally on the upper claw 48 a of the fork head 46 and may be welded thereto, for example. The positioning pins 54 engage in the space of the receiving gap 50 or reduce the gap width b of the receiving gap 50 in partial areas.

FIG. 14 shows another scaffolding assembly 100 with a latch connector. The scaffolding assembly 100 comprises a scaffolding post 40, a connecting rosette 10 arranged on the scaffolding post 40, and a scaffold component 42 detachably attached to the connecting rosette 10, the scaffold component 42 being in the form of a horizontal latch. The scaffolding component, i.e. the horizontal latch, has a latch head 58 with a coupling hook 60 which, in the shown assembly state of the horizontal latch on the connecting rosette 10, engages in a first through recess 16 of the connecting rosette 10 (cf. FIG. 1.

The locking head 58 rests on the connecting rosette 10 and can be supported on the scaffolding stem 40 via contact surfaces 52 which face the scaffolding stem 40 in the radial direction. A securing wedge 62 may serve to secure the scaffolding component 42 in its mounting position hooked onto the connecting rosette 10. The latch head 58 comprises at least one positioning pin 54, which may be integrally formed with the latch head 58 as a forged part. Alternatively, the at least one positioning pin 54 may be welded to the latch head 58. Each positioning pin 54 of the latch head 58 is preferably arranged laterally on the latch head 58. In the predetermined mounting position of the horizontal bolt on the connecting rosette 10, the at least one positioning pin 54 engages in a recess 28 of one of the hollow embossments 24 of the connecting rosette 10. As a result, the latch head 58 of the framework component 42 can, on the one hand, be precisely positioned in a simplified manner in its predetermined assembly position at a connection position A of the connection rosette 10 provided for the connection of the horizontal latch and, at the same time, be aligned in the predetermined manner relative to the connection rosette 10. Furthermore, the engagement of each positioning pin 54 of the horizontal latch in the recess 28 of a hollow embossment 24 of the connecting rosette 10 enables the latch head 60 to be seated without play or substantially without play in a direction parallel to the upper lateral surface 12 a of the connecting rosette 10. Thus, each positioning pin 54 of the horizontal bolt can also transmit thrust forces, i.e. forces in a direction parallel to the upper lateral surface 12 a of the connecting rosette 10. It should be noted that each positioning pin 54 of the framework component 42 designed as a horizontal latch can have a length I that is smaller than the depth of the recess 28 of the relevant hollow embossment 24 of the connecting rosette 10, or can also be equal to or greater than said depth. In this way, the positioning pin 54 can also be subjected to pressure in a direction axial to the longitudinal axis L of the scaffolding post. 

1. A connecting rosette (10) for a scaffolding post (40), comprising: a plurality of through recesses (16, 18) for the passage of coupling parts of framework components (42) to be detachably connected to the connecting rosette (10), which are arranged at a distance from one another in the circumferential direction of the connecting rosette (10); an upper and a lower side surface (12 a, 12 b), which are executed plane-parallel and define a nominal thickness D_(N) of the connection rosette 10; a plurality of hollow embossments (24) with projections (26) formed on only one of the two side surfaces (12 a, 12 b) and corresponding recesses (28) formed on the respective other side surface (12 a, 12 b), wherein the hollow embossments (24) are each arranged at a distance from the through recesses (16, 18) on a radial segment (30) of the connecting rosette (10), which extends in the radial direction from the inner edge (32) to the outer edge (22) of the connecting rosette (10) and by which one of the through recesses (16, 18) is bounded on each side.
 2. Connection rosette (10) according to one of the preceding claims, characterized in that each radial segment (30) has only exactly one hollow embossment (24).
 3. Connection rosette (10) according to claim 1 or 2, characterized in that all hollow embossments (24) are arranged uniformly spaced from the central axis Z of the connection rosette (10).
 4. Connection rosette (10) according to one of the preceding claims, characterized in that the elevations (26) of the hollow embossments (24) each have a circular cross-sectional shape.
 5. Connection rosette (10) according to one of the preceding claims, characterized in that each elevation (26) of the hollow embossments (24) have a uniform height h, the height h preferably corresponding at most to half the nominal thickness D_(N) of the connection rosette (10).
 6. Connection rosette (10) according to one of the preceding claims, characterized in that the elevations (26) of the hollow embossments (24) correspond to each other in their shaping and/or in their dimensioning.
 7. Connection rosette (10) according to one of the preceding claims, characterized in that the connection rosette (10) has a nominal thickness D_(N) of less than 7.1 millimetres, in particular of approximately 6 millimetres.
 8. Connection rosette (10) according to one of the preceding claims, characterized in that the through recesses (16, 18) of the connection rosette (10) have a uniform shape and size.
 9. Connection rosette (10) according to any one of the preceding claims 1 to 7, characterized in that the connection rosette (10) comprises first and second through recesses (16, 18), wherein the first through recesses (16) are larger than the second through recesses (18) and, in contrast to the second through recesses (18), are designed to be open towards a central recess (14) of the connection rosette.
 10. Connection rosette (10) according to claim 9, characterized in that the second through recesses (18) are arranged in radial direction completely within a circular line (34) intersecting the hollow embossments (24).
 11. Scaffolding assembly (100) comprising a scaffolding post (40) having at least one connecting rosette (10) according to any one of the preceding claims and a scaffold member (42) releasably secured to the connecting rosette (10), wherein the scaffold member (42) is a) has one or more locating pins (54) and each locating pin (54) engages a recess (28) in one of the hollow embossments (24) of the terminal rosette (10); or b) is laterally limited in its pivotability relative to the connection rosette (10) by at least one of the elevations (26) of a hollow embossment (24).
 12. Scaffolding assembly (100) according to claim 11, characterized in that the scaffolding assembly (42) is designed as a diagonal, preferably vertical diagonal, which has at one end a fork head (46) with a receiving gap (50) for the connecting rosette (10), the width b of which is greater than the functional thickness DF of the connecting rosette (10), wherein the fork head (46) engages over the connecting rosette (10) on both sides in the axial direction in its state detachably mounted on the connecting rosette (10) and is secured on the connecting rosette (10) via a securing element (56) which engages through the fork head (46) and one of the through recesses (16, 18) of the connecting rosette (10).
 13. Scaffolding assembly according to claim 11, characterized in that the scaffold member (42) is in the form of a horizontal latch having at one end a latch head (58) with a coupling hook (60) which engages in one of the through recesses (16, 18) of the connecting rosette (10).
 14. Scaffolding assembly according to claim 13, characterized in that each positioning pin (54) of the latch head (58) is dimensioned in its length such that it is capable of transmitting normal forces from the horizontal latch to the connecting rosette (10) in the direction of its longitudinal extension.
 15. Use of a connecting rosette (10) for a scaffolding post (40) according to any one of claims 1 to 10 in a scaffolding assembly. 